Q. 64 An air-filled rectangular waveguide has inner dimensions of 
The wave impedance of the 
mode of propagation in the waveguide at a frequency of 30 GHz is (free space impedance η0 = 377 W)
(A) 308 Ω
(B) 355 Ω
(C) 400 Ω
(D) 461 Ω
Answer: (C)
Explanation:
